Toyota 4Runner 2003 Bulb Size

Bulb size chart

9005 Bulbs

Used for: Headlight Bulb High Beam

View all 30 replacement options for size 9005 →

921 Bulbs

Used for: Back Up Reverse Light Bulb, Center High Mount Stop Light Bulb

View all 14 replacement options for size 921 →

7443R Bulbs

Used for: Brake Light Bulb, Tail Light Bulb

MAXGTRS 7443R Red LED Light Bulbs - Brake / Turn Signal / Tail

MAXGTRS 7443R Red LED Light Bulbs - Brake / Turn Signal /...

Upgrade your vehicle with the MAXGTRS 7443R Red LED Light Bulbs, delivering 360° illumination that is six times brighter than the average, thanks to their 4-sided light source and Auto Grade 3570 LED Chips. These bulbs produce a striking 24w 4000 lumens of red light, enhancing your driving safety by covering a wider area. Additionally, the bulbs’ Plug & Play design offers convenience, preventing hyper flash and error warnings without the need for extra resistors or parts. Choose the MAXGTRS 7443R Red LED Light Bulbs for a blend of bright, reliable, and easy-to-install lighting for your vehicle.

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Alla Lighting 7443R Red Flashing Light Bulb

Alla Lighting 7443R Red Flashing Light Bulb

Elevate your driving experience with Alla Lighting 7443R Red Flashing Light Bulbs. Each bulb boasts 39 high power 2835 SMD LEDs, delivering a combined 2000 lumens of vibrant light. Equipped with a smart IC driver and a projector-lens, these bulbs offer 360° light output and a stable, long-lasting performance of up to 30,000 hours. Designed for versatility, they are the perfect replacement for back-up reverse lights, brake tail lights, and center high-mounted stop lights (3rd brake lights) lamps. The bulbs feature an aluminum heat sink for optimal heat dissipation and operate efficiently within a wide voltage range of 9V~30V, thanks to the built-in intelligent IC driver.

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View all 10 replacement options for size 7443R →

4157NA Bulbs

Used for: Daytime Running Light Bulb, Turn Signal Light Bulb Front(with daytime running lights)

View all 12 replacement options for size 4157NA →

168 Bulbs

Used for: License Plate Light Bulb, Parking Light Bulb, Map Light Bulb

View all 17 replacement options for size 168 →

917 Bulbs

Used for: License Plate Light Bulb, Parking Light Bulb, Map Light Bulb

View all 12 replacement options for size 917 →

168NA Bulbs

Used for: Side Marker Light Bulb Front

View all 11 replacement options for size 168NA →

7443A Bulbs

Used for: Side Marker Light Bulb Rear

Auxbeam 7443 LED Bulbs W21/5W Switchback

Auxbeam 7443 LED Bulbs W21/5W Switchback

Introducing the Auxbeam 7443 LED Bulbs W21/5W Switchback, the ideal lighting solution for your car's general bulb needs. With their impressive specifications and advanced features, these bulbs provide superior illumination, stability, and versatility for an enhanced driving experience. Designed to fit into standard sockets, the Auxbeam 7443 LED Bulbs are suitable for a wide range of general bulb models, making them a versatile choice for various vehicles. Whether you need them for parking lights, daytime running lights (DRL), or turn signal lights, these bulbs have got you covered. One of the standout features of these bulbs is their faster on/off response time. They provide instant illumination when activated, ensuring that other drivers can quickly and clearly see your intentions. Additionally, these bulbs are vibration-resistant, ensuring that they stay securely in place even on bumpy roads, resulting in a longer lifespan. With their dual-color design, the Auxbeam 7443 LED Bulbs offer both xenon white and amber yellow options. The xenon white color is perfect for parking lights or daytime running lights (DRL), providing a crisp and modern look to your vehicle. The amber yellow color is specifically tailored for turn signal lights, offering a bright and attention-grabbing signal to indicate your intentions on the road. The built-in stable 2023 current IC driver ensures better compatibility and reliable performance. This driver allows the bulbs to function seamlessly with your vehicle's electrical system, providing a consistent and stable current flow for optimal performance. Equipped with 16 premium 3030 LED chips, these bulbs offer excellent brightness and a wide beam angle, ensuring even light distribution. The 2023 high-quality aviation aluminum material used in their construction ensures excellent cooling, preventing overheating and prolonging the lifespan of the bulbs. With their robust build and reliable performance, these bulbs will serve you for a long time.

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AUXITO 7443 Amber LED Bulbs

AUXITO 7443 Amber LED Bulbs

Illuminate the roads ahead with a new era of lighting. Designed for those who never compromise on performance, the AUXITO 7443 is not just a bulb, but a promise of brilliance, durability, and efficiency. Dive into the unparalleled intensity of its amber glow. Whether it's night or foggy conditions, expect a clarity that outshines the rest, ensuring your paths are always clearly lit and safe. Why trade brightness for efficiency? The advanced LED technology embedded within ensures that every watt is utilized to its full potential, casting bright lights while being easy on your vehicle's battery. Forget the frequent halogen bulb changes. Crafted for longevity, the AUXITO 7443 promises to be a companion on your many journeys ahead, significantly outlasting its conventional counterparts.

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OXILAM 7443A Amber Light Bulb - Turn Signal / Brake

OXILAM 7443A Amber Light Bulb - Turn Signal / Brake

Redefine brightness with the OXILAM 7443A. This is not just another bulb; it's a revolution in vehicular illumination. Discover a light that's 6 times more powerful than conventional halogen options. The advanced LED chipset within casts a 360° amber radiance, ensuring every drive is brighter and safer.  Experience the joy of a hassle-free connection. Designed to seamlessly blend with 98% of vehicle computer systems, it almost feels like this bulb was made for your car. Enhanced with an intelligent IC driver, say goodbye to those annoying dashboard errors. While most bulbs are content with simple air cooling, the OXILAM 7443A goes a step further. Crafted with aircraft-grade aluminum and armed with a silent turbo cooling fan, it's prepped to perform in the most demanding conditions, promising an extended life of up to 60,000 hours. Choose the OXILAM 7443A Amber Light Bulb, where cutting-edge technology meets lasting performance. Light up your journey like never before.

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View all 11 replacement options for size 7443A →

194 Bulbs

Used for: Stepwell Light Bulb, Courtesy Light Bulb(Compare to original - Option 1), Interior Door Light Bulb

View all 21 replacement options for size 194 →

7441 Bulbs

Used for: Stepwell Light Bulb, Courtesy Light Bulb(Compare to original - Option 1), Interior Door Light Bulb

KATUR T20 White/Amber Switchback LED Light Bulbs (7441)

KATUR T20 White/Amber Switchback LED Light Bulbs (7441)

The KATUR T20 White/Amber Switchback LED Light Bulbs (7441) are a great upgrade for your vehicle's lighting. These energy-efficient bulbs have a 12V operating voltage and are designed to last 50,000 hours, 50 times longer than traditional incandescent bulbs. The single-contact 7440 LED light bulb replaces most auto car incandescents and is well-matched with the original incandescent lights. The easy plug-and-play installation means you just have to plug it into the socket, and flip the bulb horizontally if it does not light up to match the + and - polarity. With 42 2835 SMD LED lights, this bulb provides bright and versatile white/amber switchback lighting. It is CE/RoHS compliant, ensuring high standards and quality. Choose the KATUR T20 White/Amber Switchback LED Light Bulbs for a longer-lasting and more versatile lighting solution.

$17.99

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View all 13 replacement options for size 7441 →

7440A Bulbs

Used for: Turn Signal Light Bulb Front(without daytime running lights), Turn Signal Light Bulb Rear

View all 6 replacement options for size 7440A →

DE3021 Bulbs

Used for: Courtesy Light Bulb(Compare to original - Option 2), Vanity Mirror Light Bulb

Marsauto DE3021 LED Interior Bulbs

Marsauto DE3021 LED Interior Bulbs

Introducing the Marsauto DE3021 LED Interior Bulbs: Illuminate your vehicle's interior with the convenience and superior performance of Marsauto's LED lighting solutions. Known for their commitment to producing energy-saving, long-life products, Marsauto brings you these exceptional LED bulbs designed specifically for interior applications. These LED bulbs are designed with a 1:1 design to match the original halogen bulb, providing a seamless and hassle-free replacement experience. With a simple plug-and-play installation, you can upgrade your interior lighting in no time. No modifications or complicated wiring are required, making it a user-friendly option for anyone. Experience a remarkable difference in brightness with these Marsauto LED bulbs. With three times the brightness of a traditional halogen lamp, they provide exceptional illumination for your vehicle's interior. Say goodbye to dim and dull lighting and enjoy a brighter, more vibrant driving experience. Not only do these LED bulbs offer superior brightness, but they also outlast their halogen counterparts by a significant margin. With a lifespan of 50 times longer than halogen lamps, you can enjoy long-lasting and reliable performance without the need for frequent replacements. This saves you time, reduces waste, and contributes to a more sustainable environment. Choose Marsauto DE3021 LED Interior Bulbs for a lighting solution that combines convenience, energy efficiency, and durability. Upgrade your vehicle's interior lighting with confidence, knowing that you are investing in a product designed to enhance your driving experience and provide long-lasting satisfaction.

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Combriller DE3021 LED Bulb (Ice Blue)

Combriller DE3021 LED Bulb (Ice Blue)

Upgrade your vehicle's lighting with the Combriller DE3021 LED Bulb (Ice Blue) and enjoy superior performance, style, and longevity. Drive with confidence knowing that your lighting solution is backed by Combriller's commitment to quality and customer satisfaction. Illuminate your journey with the stylish and reliable Combriller DE3021 LED Bulb. The Combriller DE3021 LED Bulb is designed with a 1:1 same socket as a halogen bulb, ensuring a perfect electrical fit. The built-in smart IC driver ensures constant current and consistent brightness without radio interference. With a lifespan of over 50,000 hours, you can rely on this LED bulb to illuminate your vehicle for years to come. Crafted with a high-quality aluminum body, this LED bulb is built to withstand high temperatures while providing low power consumption. You can rely on its durability and energy efficiency, ensuring a long-lasting and reliable lighting solution for your vehicle.Equipped with a built-in intelligent constant current IC driver and wide voltage compatibility, this LED bulb ensures quality performance and stable illumination. Say goodbye to flickering lights and uneven brightness, as the intelligent driver maintains a consistent current for optimal lighting output.The Combriller DE3021 LED Bulb is CAN-BUS ready, making it compatible with 98% of vehicles without triggering computer system errors. With its plug-and-play design, installation is a breeze. Simply remove your old halogen bulb, insert the DE3021 LED Bulb into the socket, and experience a quick and easy upgrade within 20 minutes. No complicated modifications or additional tools are required.

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View all 11 replacement options for size DE3021 →

DE3175 Bulbs

Used for: Dome Light Bulb, Trunk or Cargo Area Light

EBAIFUN 31mm DE3175 Led Bulbs, White

EBAIFUN 31mm DE3175 Led Bulbs, White

Introducing our high-performance 31mm DE3175 DE3021 DE3022 DE3023 festoon LED bulbs! These bulbs are designed to provide superior illumination and enhance the overall lighting experience in your vehicle. With a sleek and compact design, these bulbs are a perfect replacement for your existing car light bulbs. Equipped with 24-SMD 4014 type chipsets, these bulbs deliver an impressive brightness of approximately 400Lm, casting a brilliant 6000K white light. The stable light body structure ensures consistent and reliable performance, instantly upgrading the lighting system of your car. One of the key advantages of these LED bulbs is their exceptional lifespan. With a longevity of over 50,000 hours, you can rely on these bulbs to illuminate your path for years to come. The input current protection feature safeguards the circuit and ensures a safe temperature range, preventing any potential damage.

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Marsauto DE3175 LED Interior Bulb

Marsauto DE3175 LED Interior Bulb

Product Benefits: More Longevity: Built-in constant current IC for long lifespan, 5 times longer than a halogen bulb. Vibration resistant, energy-saving, low power consumption to reach a long LED bulb life up to 50,000 hours. Wide Application: Interior dome lights, map lights, license plate lights, parking lights, corner lights, trunk lights, side marker lights, courtesy lights, cargo lights, trunk lights, stepwell lights, vanity lights, etc. Easy Installation: The DE3175 LED Light bulb is easy to install, just plug and play! If it doesn’t light up, please flip it 180 degrees then it should light up

$8.99

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View all 14 replacement options for size DE3175 →

37 Bulbs

Used for: Glove Box Light Bulb

View all 12 replacement options for size 37 →

2721 Bulbs

Used for: Turn Signal Indicator Light Bulb

View all 10 replacement options for size 2721 →

This page for the 2003 Toyota 4Runner helps you verify bulb sizes by lighting position, so you can match the correct replacement before you buy. Whether you are changing a headlight, interior lamp, or rear signal bulb, the chart is organized to make fitment checks faster and easier.

The 2003 4Runner uses different bulb types depending on the lamp location, and some positions may vary by trim, market, or lighting package. Use the bulb list on this page to confirm the right size for high beams, brake lights, reverse lights, dome lights, license plate lights, and other exterior and interior bulbs.

For the best fit, compare the bulb in your vehicle with the chart before ordering, especially if your 4Runner has been modified or uses an aftermarket lighting setup. Trim and package differences can affect certain positions, and halogen-to-LED conversions may require additional parts, polarity checks, or load resistors to work correctly. If a socket or lens has been changed over the years, the installed bulb may not match the original specification, so it is smart to inspect the bulb already in the vehicle before purchase.

FAQ

What is the high beam bulb size for a 2003 Toyota 4Runner?

The high beam bulb size listed for the 2003 Toyota 4Runner is 9005.

What bulb does the center high mount stop light use?

The center high mount stop light bulb is 921.

What size reverse light bulb does this 4Runner use?

The back up reverse light bulb is 921.

What are the license plate light bulb sizes?

The license plate light bulb sizes listed are 168 and 917.

What bulb fits the parking lights?

The parking light bulb sizes listed are 168 and 917.

What are the front turn signal bulb options?

Front turn signal bulbs depend on whether the vehicle has daytime running lights. Without daytime running lights, the front turn signal bulb is 7440A. With daytime running lights, the front turn signal bulb is 4157NA.

What is the daytime running light bulb size?

The daytime running light bulb size listed for this model is 4157NA.

What bulb is used for the rear turn signals, brake lights, and tail lights?

The rear turn signal bulb is 7440A, while the brake light bulb and tail light bulb are both 7443R.

What are the dome and cargo area bulb sizes?

The dome light bulb and trunk or cargo area light bulb are both DE3175.

What bulb fits the vanity mirror light and some courtesy light positions?

The vanity mirror light bulb is DE3021, and one courtesy light option is also DE3021. Another courtesy light option listed is 194 or 7441.

What is the glove box light bulb size?

The glove box light bulb size listed is 37.

Why does the bulb chart mention different options for some interior lights?

Some interior positions on the 2003 Toyota 4Runner can vary by trim, body style, or lighting package, so the chart includes the listed alternatives for those locations.

Should I check the installed bulb before ordering replacements?

Yes. Checking the bulb already installed is the safest way to confirm fitment, especially if the vehicle has been repaired, modified, or fitted with aftermarket lighting.

Toyota 4Runner Bulb Size by Year